People thought about the need for measurements for a very long time. And the further science went, the more accurate measurements were required by scientists. Thus, devices for measuring temperature, humidity, pressure, movement, speed and many others gradually appeared and improved.
Temperature is one of the main parameters that had to be learned to measure and control. If you do not take into account the usual home thermometers, then much more complex and high-precision temperature meters can be found in any industrial enterprise.
It is almost impossible to name a technological process that people would not seek to automate. But any automation requires control, which is carried out by measuring various physical quantities, be it pressure, speed, humidity or temperature. By the way, temperature measurements account for a good half of such measurements.
How temperature is measured
The temperature is measured using sensors. A sensor is a special device that is able to perceive external physical influences and convert them into an electrical signal. In particular, temperature sensors are temperature transmitters.
The electrical signal obtained as a result of the temperature effect on the sensor can be converted through special electronic devices into voltage, current or charge, i.e. into a specific output format.
There are many types of temperature sensors, which differ in both the physical principles of operation and the materials from which they are made. Temperature sensors from blackhawk supply are often placed in hard-to-reach places, for example, in nuclear reactors or smelting furnaces. But with the help of temperature sensors, much simpler everyday tasks are also solved, for example, with their help, the temperature of the water in the heating system is regulated, even modern washing machines, electric ovens or hobs cannot do without them.
This variety of functions and tasks that temperature sensors perform affects their range. Depending on the purpose and scope of a particular sensor, it will have a certain set of technical characteristics.
Temperature sensors can differ significantly from each other, first of all, in the measurement range, accuracy, noise immunity and speed. However, all temperature sensors work on the same principle: the conversion principle. In other words, the measured temperature is converted into an electrical quantity by means of a primary converter.